Posts Tagged ‘ R-english ’

We keep breaking records ? so what ?… Get statistical perspective….

August 17, 2011
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We keep breaking records ? so what ?… Get statistical perspective….

This summer, we have been told that some financial series broke some records (here, in French) For instance, the French CAC40 had negative return for 11 consecutive days (which has never been seen, so far). > library(tseries)> x<-get....

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PC-Axis with R: pxR

PC-Axis with R: pxR

PC-Axis is a software family consisting of a number of programs for the Windows and Internet environment used to present statistical information. It is used by national and international institutions to publish statistical data. Programs in the PC-Axis family use a particular data file format (see the full PX-Axis data format description). Now the pxR

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1st Data Analysis Contest Using R

1st Data Analysis Contest Using R

Emilio Torres Manzanera has just announced the 1st Data Analysis Contest Using R: “Nestoria (http://www.nestoria.com/) is a specialized web search engine platform in house prices. Nestoria and Lokku Labs aim to improve the understanding of the public of the value of its databases. The company aims to engage a few brilliant statisticians in the expectation

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rasterVis

rasterVis

The raster package defines classes and methods for spatial raster data access and manipulation. The new rasterVis package complements raster providing a set of methods for enhanced visualization and interaction. It is now at CRAN. Several examples can ...

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Population pyramids in R

Some friends asked me about how to built population pyramids with confidence intervals in R. When I did my own probabilistic population projections, I had the same trouble, unfortunately there is no library to do that. So here I share the code I wrote:...

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Raster, CMSAF and solaR

Raster, CMSAF and solaR

The Satellite Application Facility on Climate Monitoring (CMSAF) generates, archives and distributes widely recognised high-quality satellite-derived products and services relevant for climate monitoring in operational mode. The data is freely accesible here after a registration process. I have ask them for several files with monthly averages of global solar radiation over the Iberian Peninsula (download).

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solaR 0.24 at CRAN

solaR 0.24 at CRAN

The version 0.24 of solaR is at CRAN and R-Forge. Some days before the 0.23 version was uploaded, but I had to make a quick fix to readMAPA: the url of http://www.mapa.es/siar has been changed to http://www.marm.es/siar. Moreover, this function has been renamed to readSIAR, although it is still available as readMAPA. Consequently the mode

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Great circles, raster, sp and lattice

Great circles, raster, sp and lattice

Recently I found a post at FlowingData with a detailed tutorial to map connections with great circles with R. The tutorial of FlowingData is excellent, but I feel more comfortable with the sp classes and methods, and with the lattice and latticeExtra packages. Besides, I want to use the free spatial data available from the

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Multivariate probit regression using (direct) maximum likelihood estimators

May 11, 2011
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Multivariate probit regression using (direct) maximum likelihood estimators

Consider a random pair of binary responses, i.e. with taking values 1 or 2. Assume that probability can be function of some covariates . The Gaussian vector latent structure A standard model is based a latent Gaussian structure, i.e. there exi...

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Who will be the next President of the US ?

May 5, 2011
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Who will be the next President of the US ?

A lot of weird facts (?) can be found on the internet. For instance, about the height of the winner of Presidential elections in the US: the taller always win... "Still, being short does, on average, hurt a person's prospects...The tall guy gets th...

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